Round flame heater



FIG. 1 is a front side view of a round flame heater showing my new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a rear side view thereof; and,

FIG. 5 is a top plan view thereof.

A bottom view is omitted because it is plain and unornamental and forms no part of the subject matter of the claimed design.

The broken line showings of FIGS. 1-4 are environmental only and not part of the claimed design.

In the drawings, the broken lines depict unclaimed subject matter only and form no part of the claimed design. 

The ornamental design for a round flame heater, as shown and described. 